pytorch

3b421af8 - [Reducer] small fix (#74127)

[Reducer] small fix (#74127) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/74127 getRank() is now public. ghstack-source-id: 151319258 Test Plan: CI Reviewed By: zhaojuanmao Differential Revision: D34833222 fbshipit-source-id: a846509e2d61dd9208706d471c7c83819ce24922 (cherry picked from commit 119974af5a0eb9805386f5026a1a2d14d2ffc13e)